Pinout of 13-pin DIN Connector on the back of a '92 Subaru Legacy Panasonic 'Premium Sound' Car Stereo

This is for Panasonic model P113 or P114 80W Cassette/Receiver.
As labeled on the bottom of the unit: Model No. 86201AA350, Ref. No. CQ-LF1111Z.

As Numbered on the female DIN socket:
Pin 1NC
Pin 2Line-In Right
Pin 3NC
Pin 4Line-In Left
Pin 5Signal Gnd
Pin 6CD Play (or Remote Amp In) (send 12V to this to activate amp for remote device)
Pin 7NC
Pin 8Mute (input)
Pin 9Acc Out (filtered power)
Pin 10Batt Out (filtered power)
Pin 11CD Stop (input)
Pin 12NC
Pin 13Gnd

The story behind this pinout is a long one--suffice it to say that Panasonic SUCKS. They consistently were annoying and completely uninformative to me and my Subaru dealer in our attempts to find the pinout of this connector. In the end I ended up disassembling the whole stereo, reverse-engineering the schematics, and finally figuring out from them what each pin on the connector did. For pins 8 and 11, I'd like to thank Brian S. for his help in identifying them! Probably the logic levels to those two pins are 0-12V just as for Pin 6, but I haven't verified this.